Dry Disconnect Couplings in Berthed Fluid Transfers

What Are Dry Disconnect Couplings?

Dry disconnect couplings – or dry break couplings – are pieces of safety equipment used in hose systems transferring industrial fluids. The coupling facilitates both the highest level of safety during transfer, and quick easy connection between hose and tank.

The next section details how these couplings function throughout the fluid transfer procedure. Visit our homepage to learn more about breakaway couplings.

Dry Break Coupling Functionality

Gas being offloaded to a road tanker at port. — Dry break couplings are the safest way to transfer industrial fluids

Easy Connect and Disconnect

A dry disconnect coupling works by connecting the female unit (attached to the hose) to the male unit, (attached to the tank). Connecting the coupling units together is achieved by mounting the units together and turning the hose end clockwise. This action fastens the coupling units together.

This is made easier by ergonomic grips on the end connections and a bump ring to help guide the operator. An additional built-in swivel on the hose end removes any torsion and tension on the hose and avoids creating a trip hazard.

Zero Spillage

Following the connection of the male and female unit, the seal valves on both end connections will open to allow media to flow through the couplings.

A locking pin will also engage, guaranteeing that the coupling will not separate unless operated by hand. Their self sealing design means there is no possibility of spillage during fluid transfer.

Safe Disconnection

Once the flow of fluid has ceased, the couplings’ automatic valve closure avoids spilling any residual fluid when disconnecting. Once again, the ergonomic grips on the coupling help make lighter work of their operation.

Finally, the vehicle which has received the product can now depart and transport it elsewhere. The whole process is made quick, easy and safe by using dry break couplings. These couplings are truly the diamond standard in safe fluid handling.

Dry disconnect couplings are even used for chemicals in the food industry.

Safe and Economical Tank and Hose Units

Dry break couplings provide the highest level of safety during fluid transfers thanks to their self sealing design and easy-to-operate connection. Due to these features, their tank and hose units are an invaluable asset in fluid transfers.

The dry disconnect feature which is standard in all variations of these couplings is especially vital when handling hazardous materials. Chemical exposure can cause severe burns and cardiovascular problems, among other health risks when inhaled or absorbed through the skin.

Risking endangering personnel from hazardous spills is not an option; dry disconnect couplings are specifically designed to eliminate those risks. Application of these couplings protects personnel and mitigates possible liability for accidents.

Equally important is the avoidance of damage to local environments or ecosystems from spills. Especially in cases where the transfer is taking place on the seafront, marine ecosystems can be hugely susceptible to contamination. Not only could this be devastating for local wildlife, but also for a company’s reputation.

Spills of any kind incur huge reputational and financial costs from investigations and fines. Dry break couplings eliminate this risk and avoid unnecessary damages to the company, the environment or active personnel.

Media Transferred by Dry Disconnect Couplings

The use of dry disconnect couplings in chemical transfer operations has already been discussed, however, they are also the given choice in the oil and gas industry.

Dry disconnect couplings are designed for application in a range of media transfers. Due to their robust design they can handle petroleum products such as oil, liquefied gas and diesel, countless hazardous chemicals and any industrial dry powders. They can also be used for refuelling operations including bunkering between a road tanker and a floating vessel.

Dry Disconnect Coupling Design

High-quality aluminium and stainless steel is used to manufacture dry disconnect couplings, ensuring maximum compatibility across media types. They are also designed with high grade seals so the coupling can prevent any spillage after connection.

The range of top-of-the-line materials used to manufacture the coupling are a testament to the industry’s commitment to personnel safety.

Dry Disconnect Couplings in Fluid Transfers at Port

This section provides an example of how dry disconnect couplings are used for safer transfers in ports. Media being transferred from ship to shore is both highly valuable and often dangerous.

Oil tanker berthed at port to transfer oil to storage. — Dry disconnect couplings are invaluable in a number of offshore industries.

Here is an example of how dry disconnect coupling implementation mitigates risks of spilling precious cargo and harming personnel.

Ship Berths

Firstly, the ship would berth at port and lower its transfer hose to prepare for fluid transfer.
These hose systems will utilise a marine Breakaway Coupling for safety during transfer.

Ship Transfer Begins

Once the hose is connected to the loading arm, fluid transfer can begin.
After all the required fluid has been offloaded, the ship departs on its next voyage.

Tank Offloads to Vehicles

Next, the offloaded fluid must be transferred from the tank at port to storage vehicles.
Personnel will connect the storage tank to the road or rail tanker via the coupling.
The couplings guarantee personnel safety by mitigating spill risk.

Transfer Complete

Once transfer is complete, disconnecting the coupling is quick and efficient.
Finally, the road or rail tanker departs for its destination.

Conclusion: Dry Disconnect Couplings are Vital

Dry disconnect couplings are incredibly valuable to fluid transfers, offering both the highest level of safety and easy operation. To summarise, here are some of the incredible benefits of dry break couplings:

Quick, easy and safe to use, these couplings make lighter work for operators during transfers. They also guarantee the safety of personnel and the protection of valuable assets by avoiding spills of product. Finally, dry disconnect couplings can be used with a multitude of media types in a diverse range of applications.

These pieces of safety equipment have revolutionised safe transfer and are essential implements in all transfer systems going forward.